Ethyl Acetoacetate → HCID 19351225, compound

HRID 1636337Notes

Reaction equation

[CH2:1]([N:3]([CH2:15][CH3:16])[S:4]([C:7]1[CH:12]=[CH:11][C:10]([NH:13][NH2:14])=[CH:9][CH:8]=1)(=[O:6])=[O:5])[CH3:2].C([O:19][C:20](=O)[CH2:21][C:22]([CH3:24])=O)C>>[CH2:15]([N:3]([CH2:1][CH3:2])[S:4]([C:7]1[CH:12]=[CH:11][C:10]([N:13]2[C:20](=[O:19])[CH2:21][C:22]([CH3:24])=[N:14]2)=[CH:9][CH:8]=1)(=[O:5])=[O:6])[CH3:16]

Participants

Reactant 2

HCID 8868Ethyl Acetoacetate

HCID 17860775HCID 17860775, compound

Product 1

HCID 19351225HCID 19351225, compound

Procedure

From the reaction of N,N-diethyl-4-hydrazinobenzenesulfonamide and ethylacetoacetate gives N,N diethyl-4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-benzenesulfonamide. Subsequent reaction wvith 2-ethoxyaniline yields N,N-diethyl4-(4,5-dihydro-4-(2-ethoxyanilinomethylene)-3-methyl-5-oxo-1H-pyrazol-1-yl)-benzenesulfonamide, Mp: 170° C.

Sources & evidence

ORD record: ord-34f3d61ffd794013959e016e842b3d8a
Source dataset: uspto-grants-2000_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06034099

Reaction notes

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